Setting up your computer in the DMZ won't fix anything if it's a software security measure. I know at least in Win2K and the XP line in the Add/Remove programs menu Windows updates are usually listed there so you can roll them back if they cause a problem.
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People don't like to be meddled with. We tell them what to do, what to think, don't run, don't walk. We're in their homes and in their heads and we haven't the right. We're meddlesome. ~River Tam
Sedao